mirror of https://gitee.com/openkylin/linux.git
144 lines
4.0 KiB
C
144 lines
4.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright (C) B.A.T.M.A.N. contributors:
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*
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* Marek Lindner, Simon Wunderlich
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*/
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#ifndef _NET_BATMAN_ADV_LOG_H_
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#define _NET_BATMAN_ADV_LOG_H_
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#include "main.h"
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#include <linux/atomic.h>
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#include <linux/bitops.h>
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#include <linux/compiler.h>
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#include <linux/printk.h>
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#ifdef CONFIG_BATMAN_ADV_DEBUG
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int batadv_debug_log_setup(struct batadv_priv *bat_priv);
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void batadv_debug_log_cleanup(struct batadv_priv *bat_priv);
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#else
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static inline int batadv_debug_log_setup(struct batadv_priv *bat_priv)
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{
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return 0;
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}
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static inline void batadv_debug_log_cleanup(struct batadv_priv *bat_priv)
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{
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}
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#endif
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/**
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* enum batadv_dbg_level - available log levels
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*/
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enum batadv_dbg_level {
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/** @BATADV_DBG_BATMAN: OGM and TQ computations related messages */
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BATADV_DBG_BATMAN = BIT(0),
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/** @BATADV_DBG_ROUTES: route added / changed / deleted */
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BATADV_DBG_ROUTES = BIT(1),
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/** @BATADV_DBG_TT: translation table messages */
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BATADV_DBG_TT = BIT(2),
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/** @BATADV_DBG_BLA: bridge loop avoidance messages */
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BATADV_DBG_BLA = BIT(3),
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/** @BATADV_DBG_DAT: ARP snooping and DAT related messages */
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BATADV_DBG_DAT = BIT(4),
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/** @BATADV_DBG_NC: network coding related messages */
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BATADV_DBG_NC = BIT(5),
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/** @BATADV_DBG_MCAST: multicast related messages */
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BATADV_DBG_MCAST = BIT(6),
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/** @BATADV_DBG_TP_METER: throughput meter messages */
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BATADV_DBG_TP_METER = BIT(7),
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/** @BATADV_DBG_ALL: the union of all the above log levels */
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BATADV_DBG_ALL = 255,
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};
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#ifdef CONFIG_BATMAN_ADV_DEBUG
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int batadv_debug_log(struct batadv_priv *bat_priv, const char *fmt, ...)
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__printf(2, 3);
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/**
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* _batadv_dbg() - Store debug output with(out) rate limiting
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* @type: type of debug message
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* @bat_priv: the bat priv with all the soft interface information
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* @ratelimited: whether output should be rate limited
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* @fmt: format string
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* @arg: variable arguments
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*/
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#define _batadv_dbg(type, bat_priv, ratelimited, fmt, arg...) \
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do { \
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struct batadv_priv *__batpriv = (bat_priv); \
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if (atomic_read(&__batpriv->log_level) & (type) && \
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(!(ratelimited) || net_ratelimit())) \
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batadv_debug_log(__batpriv, fmt, ## arg); \
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} \
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while (0)
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#else /* !CONFIG_BATMAN_ADV_DEBUG */
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__printf(4, 5)
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static inline void _batadv_dbg(int type __always_unused,
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struct batadv_priv *bat_priv __always_unused,
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int ratelimited __always_unused,
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const char *fmt __always_unused, ...)
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{
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}
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#endif
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/**
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* batadv_dbg() - Store debug output without rate limiting
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* @type: type of debug message
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* @bat_priv: the bat priv with all the soft interface information
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* @arg: format string and variable arguments
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*/
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#define batadv_dbg(type, bat_priv, arg...) \
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_batadv_dbg(type, bat_priv, 0, ## arg)
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/**
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* batadv_dbg_ratelimited() - Store debug output with rate limiting
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* @type: type of debug message
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* @bat_priv: the bat priv with all the soft interface information
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* @arg: format string and variable arguments
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*/
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#define batadv_dbg_ratelimited(type, bat_priv, arg...) \
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_batadv_dbg(type, bat_priv, 1, ## arg)
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/**
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* batadv_info() - Store message in debug buffer and print it to kmsg buffer
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* @net_dev: the soft interface net device
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* @fmt: format string
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* @arg: variable arguments
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*/
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#define batadv_info(net_dev, fmt, arg...) \
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do { \
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struct net_device *_netdev = (net_dev); \
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struct batadv_priv *_batpriv = netdev_priv(_netdev); \
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batadv_dbg(BATADV_DBG_ALL, _batpriv, fmt, ## arg); \
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pr_info("%s: " fmt, _netdev->name, ## arg); \
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} while (0)
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/**
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* batadv_err() - Store error in debug buffer and print it to kmsg buffer
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* @net_dev: the soft interface net device
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* @fmt: format string
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* @arg: variable arguments
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*/
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#define batadv_err(net_dev, fmt, arg...) \
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do { \
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struct net_device *_netdev = (net_dev); \
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struct batadv_priv *_batpriv = netdev_priv(_netdev); \
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batadv_dbg(BATADV_DBG_ALL, _batpriv, fmt, ## arg); \
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pr_err("%s: " fmt, _netdev->name, ## arg); \
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} while (0)
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#endif /* _NET_BATMAN_ADV_LOG_H_ */
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